<!DOCTYPE html>
<p lang="en">
<head>
    <meta charset="UTF-8">
    <title>第三周作业</title>
    <style type="text/css">
        .content{
            width: 1200px;
            background-color: aliceblue;
            {#居中#}
            margin: 0 auto;
            font-family: "Adobe 宋体 Std L";
        }
        .left{
            width: 200px;
            {#height: 800px;#}
            float: left;
            {#background-color: aqua;#}
        }
        .right{
            width: 1000px;
            {#height: 800px;#}
            float: left;
            {#background-color: cadetblue;#}
        }
        h3,h4{
            {#缩进#}
            text-indent: 2em;
        }
    </style>
</head>
<body>
    <div class="content">
        <div style="background-color: coral; font-size: 24px; text-align: center;">第三周作业</div>
        <div class="left">
            <ul>
                <li>HTML</li>
                <li>CSS</li>
                <li>JavaScript</li>
                <li>MORE...</li>
            </ul>
        </div>
        <div class="right">
            {% block right %}
            
            {% endblock %}
        </div>
    </div>
</body>
</html>